CN106146796A - Urethanes dispersant - Google Patents

Urethanes dispersant Download PDF

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Publication number
CN106146796A
CN106146796A CN201510144172.0A CN201510144172A CN106146796A CN 106146796 A CN106146796 A CN 106146796A CN 201510144172 A CN201510144172 A CN 201510144172A CN 106146796 A CN106146796 A CN 106146796A
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Prior art keywords
dispersant
compound
independently selected
diisocyanate
isocyanate
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Inventor
林宏益
颜俊宏
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Deuchem Shanghai Chemical Co Ltd
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Deuchem Shanghai Chemical Co Ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/16Amines or polyamines
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/10Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805Compounds having only one group containing active hydrogen
    • C08G18/2815Monohydroxy compounds
    • C08G18/283Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/32Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225Polyamines
    • C08G18/3228Polyamines acyclic
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666Compounds of group C08G18/48 or C08G18/52
    • C08G18/667Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6685Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/73Polyisocyanates or polyisothiocyanates acyclic
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
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    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084Dispersions of dyes
    • C09B67/0085Non common dispersing agents
    • C09B67/009Non common dispersing agents polymeric dispersing agent
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    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00Pigment pastes, e.g. for mixing in paints
    • C09D17/001Pigment pastes, e.g. for mixing in paints in aqueous medium
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    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00Pigment pastes, e.g. for mixing in paints
    • C09D17/003Pigment pastes, e.g. for mixing in paints containing an organic pigment
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    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00Pigment pastes, e.g. for mixing in paints
    • C09D17/004Pigment pastes, e.g. for mixing in paints containing an inorganic pigment

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  • Engineering & Computer Science (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Urethane ester type dispersant, it includes derived from following fragment: (1) one or more there is the polyisocyanate of at least 2.0 isocyanate groups, (2) have the monofunctional compound of isocyanate-reactive functional moiety;And (3) amine degree of functionality is two or more polyamine.This dispersant can be prepared in the most solvent-laden preparation process.This dispersant can apply in water-based pigment dispersions system.

Description

Urethanes dispersant
Invention field
Present disclosure describes the dispersant based on urethanes and urea bond, it is in polarity Medium such as abrasive, coating and ink disperse organic/inorganic pigment granules.Specifically, this point Powder packets contains effective multiple anchor portions with amide, urea and urethane groups, Its integrated distribution is connected in dispersant molecule and with the solvent making chain structure solubilising.
More specifically, chemical constitution mentioned above is suitable to prepare condensed pigment, it is further adapted for steady Determine binding agent, coating, ink composite, plastics and polymeric blends.As wetting and dispersing Agent, they reduce the viscosity of this system, improve storage stability and fluid properties, and also can To strengthen intensity of colour.
Background
Multiple different urethanes or polyurethane dispersant contain polyethylene oxide chain, should Chain is present in the side chain being connected with polyurethane skeleton and/or end chain and multi-functional anchor of arranging in pairs or groups Determine group.
WO97/19120 considers water dispersible unsaturated polyurethanes dispersant, and it includes hanging Unsaturated alkyl group, the sulfonate of pendency and the polyalkylene oxide hung down.It discloses polyurethane to fit In stable aqueous dispersion and the pigment dispersion of preparing hydrophobic polymer.
2009/0221745A1 United States Patent (USP) describes based on polyepoxide main chain poly- Epoxy/amine type dispersant, this main chain has as anchor with little with what surface of pigments interacted Amine molecule (benzylamine or ethanolamine) and as solubilising tail (solubilizing tail) with in a solvent (trade mark, from HUNTSMAN's for the polyetheramine extended) and binding agent Jie Matter is to provide stabiliser.This wetting dispersing agent can be high with general binding agent and dicyandiamide solution Spend compatible.
Other are also had to be in progress in this field.8017686B2 United States Patent (USP) mentions novel poly-ammonia Ester dispersant binder, it has the side base containing hydrophilic and hydrophobic polyalkylene oxide based on pendency Polyurethane skeleton.The content of the polyalkylene oxide in polyurethane dispersant resin is at least 45%. This document describing condensed pigment to can be easy to be incorporated in coating composition, pigment solids is stably It is dispersed therein.Additionally, dispersant resin can be applicable to and the different pigment one in the range of wide spectrum Rise use, especially for being difficult to scattered tricky cases, as DPP red BO (Ciba), Heliogene Blue L7101F (BASF) and Quindo Violet RV929 (Bayer).
8664331B2 United States Patent (USP) also discloses a class polyurethane dispersant, and it contains In side chain, the substantial amounts of oxirane of 35wt% to 90wt% based on total polymer weight repeats single Unit.Hydroxy-acid group as anchor portion is merged in polyurethane skeleton.For graining paste or painting Feed composition, the dispersant of these excellences can provide the functional character of improvement, such as abrasive Viscosity, glossiness and intensity of colour.
Therefore, above-mentioned dispersant obtains many excellent performance, water-dispersible and binding agent System and the extensive compatibility of various pigment, the lower viscosity of abrasive and dispersion Long-time stability.But up to now, at urethanes or polyurethane-type dispersant Building-up process exists organic solvent always, and this will likely result in the problem of crosslinking, if Relate to the anchoring group of the multi-functional excellence of such as polyamine derivatives.Therefore, at wettability With between environmental friendliness problem, there is breach in urethanes or polyurethane-type dispersant.
Polyacrylic acid (PAA), sodium polyacrylate (NaPAA) and related derivatives are the 3945843rd A United States Patent (USP) is disclosed, and 4767644A United States Patent (USP) has for not containing The another kind of method of the dispersant of organic solvent.But the profit of dispersant this kind of for organic pigment Wet ability is the most defective, and this is owing to polarity is not mated.Therefore, it is always lived with class surface Property agent dispersant package is to strengthen wetting effect.
This makes more to be difficult to ignore volatile organic matter problem.Environmental friendliness problem not only limits The application of dispersant and limit its production process.From urethanes or polyurethanes From the perspective of the building-up process of dispersant, relate to a large amount of organic solvent: ester, example the most always Such as butyl acetate and Methoxypropylacetate;Amide, such as dimethylformamide;Lactams, Such as METHYLPYRROLIDONE;Or ketone, such as methyl ethyl ketone (MEK) and methyl-isobutyl Ketone (MIBK).On the other hand, the wettability of dispersant is paid high attention to, particularly with high table The situation of face energy, such as water-based paint compositions.Therefore, eco-friendly production process with Breach is there is between the pigment wetting performance of dispersant.
Summary of the invention
In one embodiment, the disclosure provides dispersant, and it includes derived from following sheet Section: (1) one or more there is the polyisocyanate of at least 2 isocyanate groups, (2) have There is the monofunctional compound of isocyanate-reactive functional moiety;And (3) amine degree of functionality be two or More polyamine.In some embodiments, dispersant is water miscible.
In some embodiments, the isocyanate groups of the polyisocyanate of 50%-90% equivalent Be combined with monofunctional compound, and the isocyanate groups of 10%-50% equivalent is tied with polyamine Close.
In some embodiments, monofunctional compound is independently selected from aliphatic compound, fat Ring compounds of group and aromatic compound, and combinations thereof.In some embodiments, simple function Compound contains at least one independently selected from following group :-O-or-COO-and combinations thereof. In some instances, the molecular weight of monofunctional compound is 350 to 5000.Some embodiment party In case, monofunctional compound is independently selected from the poly-(C containing 60%-99% ethylene oxide group2-4- Alkylene oxide), polyester oligomer, and combinations thereof.In some of such embodiment, polyester oligomeric Thing contains the fragment derived from dicarboxylic acids and ethylene glycol.
In some embodiments, polyisocyanate is diisocyanate, and it is independently selected from first Phenylene diisocyanate, isophorone diisocyanate (IPDI), hexamethylene diisocyanate, Double (the 2-of diphenyl-methane-4,4'-diisocyanate, dicyclohexyl methyl hydride-4,4'-diisocyanate, 1,4- Isocyano (isocyanato)-2-base) benzene, trimethyl hexamethylene diisocyanate, or these two The mixture of isocyanates.In some of the other embodiments, polyisocyanate independently selected from Adduct, isocyanates biuret, isocyanates isocyanuric acid ester or this kind of polyisocyanate Mixture.In certain embodiments, polyisocyanate is independently selected from toluene di-isocyanate(TDI) With trimethylolpropane adduct, hexamethylene diisocyanate biruet trimer, six methylenes Group diisocyanate isocyanurate trimer, isophorone diisocyanate isocyanuric acid ester three Aggressiveness, hexamethylene diisocyanate isocyanurate trimer, and isophorone diisocyanate Ester isocyanurate trimer.
In some embodiments, isocyanate-reactive functional moiety independently selected from hydroxyl, Amine or imines and combinations thereof.
In some embodiments, polyamine independently selected from polymine (PEI), polyvinylamine, Polyallyl amine oligomer, aziridine oligomer and combinations thereof.In some embodiments, Polyamine is independently selected from diethylenetriamines (DETA), trien (TETA), four sub-second Base five amine (TEPA), penten (PEHA), six ethylidene seven amine (HEHA) and groups thereof Close.
Embodiment describes in detail
The present invention provides the dispersant composition with end solubilizing group, and it is by without solvent Building-up process obtain via urethanes and urea bond.It may be used for water based paint and molten Agent base coating.Meanwhile, this dispersant composition can provide the moistening effect of excellence to obtain tool There are extremely low viscosity and the mill base of good long-term colloidal stability.It includes as dispersant Anchor portion with absorption polyamine on the surface of the pigment, and monohydroxy compound end-blocking is poly-different Cyanate, to form isocyanates list adduct as solvent solubilizing group, in polyisocyanate Only retain a degree of functionality.
In one embodiment, the disclosure provides dispersant, and it has derived from following sheet Section: (1) one or more there is the polyisocyanate of at least 2 isocyanate groups, (2) have The monofunctional compound of isocyanate-reactive functional moiety;And (3) amine degree of functionality is two or more Many polyamine.
In another embodiment, dispersant can obtain from the reaction not containing machine solvent: (1) one or more have the polyisocyanate of at least 2 isocyanate groups, have different with (2) The monofunctional compound of polyisocyanate reactant functional moiety is reacted to form in isocyanates list adduction Mesosome.Isocyanates list adduction intermediate is that two or more polyamine are anti-subsequently with (3) amine degree of functionality Should.
According to dispersant composition as herein described, component (1) can be to have at least 2 isocyanides The polyisocyanate of acid esters group.In one embodiment, polyisocyanate includes aliphatic Isocyanates, alicyclic isocyanate, aromatic isocyanate, heterocyclic isocyanate, and Mixture.In some embodiments, the number of the isocyanate groups of this kind of polyisocyanate Can be 2 to 8,2 to 5, or 2 to 4.In other embodiments, isocyanate groups Average be 2 to 5.Have two isocyanate functional groups polyisocyanate be suitable for Example is diisocyanate, such as toluene di-isocyanate(TDI) (TDI, 80/20), isophorone two Isocyanates (IPDI), hexamethylene diisocyanate (HDI), diphenyl-methane-4,4'-two Carbimide. Double (the 2-isocyanide of ester (4,4'-MDI), dicyclohexyl methyl hydride-4,4'-diisocyanate (HMDI), 1,4- Acid group-2-base) benzene (TXMDI), trimethyl hexamethylene diisocyanate (" TMDI "), or these The mixture of diisocyanate.In one embodiment, polyisocyanate be TDI, IPDI, HMDI, and its mixture.In one embodiment, polyisocyanate is TDI.One In individual embodiment, polyisocyanate includes HDI isocyanurate trimer, and IPDI Isocyanurate trimer.Multi-functional example is the addition by diisocyanate and polyhydric alcohol The Desmodur L that product obtains, and the Desmour N obtained by biuret reaction, different by two The Desmodur IL that cyanate cyclisation obtains.
Further according to dispersant composition specifically described herein, component (2) can be to have isocyanide The monofunctional compound of acid esters reactive functional part.In one embodiment, monofunctional Compound can be the molecular weight with 350g/mole to 5000g/mole aliphatic compound, Alicyclic compound, aromatic compound, and combinations thereof, and can be contained one or more Ehter bond, ester bond and mixture thereof.In some embodiments, this kind of monofunctional compound point Son amount can be: 550g/mole to 3000g/mole;550g/mole to 2000g/mole or 550g/mole to 1000g/mole.The isocyanates reaction of the embodiment of monofunctional compound Functional moiety is independently selected from hydroxyl, amino or imino group and combinations thereof for property.
In one embodiment, monofunctional compound can be monohydroxy compound.At one In embodiment, monohydroxy compound can be linear, branched, and mixture.? In some of the other embodiments, monohydroxy compound can be saturated or unsaturated.At certain In a little embodiments, monohydroxy compound is saturated.
In a certain embodiment, monofunctional compound includes poly-(C2-4-alkylene oxide) compound.Can That take is poly-(C2-4-alkylene oxide) compound have low-molecular-weight make its effectively act as point The effect of the solubilizing group of powder.In some embodiments, in final and dispersant structure Number-average molecular weight Mn of the polyalkylene oxide chain that anchor portion is connected is 350g/mole to 5000 g/mole;Or 350g/mole to 3000g/mole or 350g/mole to 2000g/mole. In one embodiment, poly-(C2-4-alkylene oxide) number-average molecular weight of compound is less than 5000 g/mole.In another embodiment, poly-(C2-4-alkylene oxide) compound number-average molecular weight not More than 3000g/mole.In still another embodiment, poly-(C2-4-alkylene oxide) number of compound Average molecular weight is less than 2000g/mole.In this kind of embodiment, poly-(C2-4-alkylene oxide) change The number-average molecular weight of compound is at least 350g/mole.
In another embodiment, monofunctional compound can be polyester oligomer.Polyester is low Polymers can be obtained by known technology, such as one or more dicarboxylic acids, ethylene glycol, anhydride, Hydroxy carboxylic acid and can apply to the polycondensation reaction of other material any of esterification.Or, The ring-opening polymerisation of the corresponding lactone of such as δ-valerolactone and/or 6-caprolactone is also suitably to select.
In one embodiment, monofunctional compound and component (1) are reacted to form isocyanates Single adduction intermediate.In one embodiment, there is the poly-of at least 2 isocyanate groups Isocyanates has a structure of formula (1):
Wherein Q is aliphatic group, aromatic group, aralkyl or optionally by hetero atom, amide groups, The fat that ester group, carbamate groups, carbonate group, urea groups or a combination thereof one or many interrupt Race's main chain or aromatic backbone;X be direct key, alkylidene, alkenylene, alkynylene, arlydene, Cycloalkylidene, sub-Heterocyclylalkyl, inferior heteroaryl, cycloalkyl-alkylidene, arylene-alkylene, Cycloalkylidene-arlydene, sub-heterocycloalkyl-alkyl, inferior heteroaryl-alkylidene;And
R is the integer of 2 to 8.
In at least one embodiment, the isocyanates list adduction intermediate of formula (2) is to pass through The reaction of the monofunctional compound of Y-Z form and component (1) is formed:
Wherein, the Z of compound Y-Z is nucleophilic group;Y is aliphatic group, alicyclic group, virtue Race's base or a combination thereof, the molecular weight of compound Y-Z be 350g/mole to 5000g/mole or 350g/mole to 3000g/mole or 350g/mole to 2000g/mole, and can contain There are one or more ehter bonds, ester bond or its mixture;P is the equivalents of compound Y-Z;r For the equivalents of NCO group in polyisocyanate:
Q has identical implication presented above;And (r-p) it is unreacted NCO group Equivalents.The reaction of the monofunctional compound of Y-Z form and component (1) can be by scheme 1 table Show:
Scheme 1
In another embodiment, the monofunctional compound of Y-Z form and component (1) react with The isocyanates list adduction midbody product of formation formula (3):
Wherein (r-1) is that (every polyisocyanate is divided for the equivalents of the NCO reacted with compound Y-Z Son), and the equivalents that (r-1) is the Y-Z reacted with component (1);Y, Z, Q, r and X are Just like the identical implication defined in formula (1).The monofunctional compound of Y-Z form and component (1) Reaction can be represented by scheme 2:
Scheme 2
In at least one preferred embodiment, compound Y-Z is monohydroxy compound, Y-OH, it forms the isocyanates list adduction intermediate of formula (3.1) with component (1) when reacting Product:
Wherein (r-1) is equivalents (every polyisocyanate of the NCO reacted with compound Y-OH Molecule);Y, Q, r with X all just like the identical implication defined in formula (1).Monohydroxylated Compound Y-OH can be represented by scheme 3 with the reaction of component (1):
Scheme 3
Some sides of being preferable to carry out at the isocyanates list adduction midbody product of formula (2) and formula (3) In case, Z is-O-,--or-NR-, wherein R can be that to have 1 to 10 carbon former to NH Alkyl, cycloalkyl, aryl or a combination thereof of son.At least one enforcement at the compound of formula (1) In scheme, Q derived from biuret (imino-diacetic carbamide) or 1,3,5-triazines-2,4,6-tri- Ketone or a combination thereof.
Further according to dispersant composition as herein described, component (3) can be that amine degree of functionality is Two or more polyamine.In such embodiment, polyamine includes poly-(C2-6-alkylidene Imines), such as polymine (PEI) and for the polyvinylamine of C2 compound, for C3ization The PAH of compound.In some embodiments, polyamine can be linear or branched. Exemplary aliphatic linear polyamine includes primary amine groups and secondary amine, such as diethylenetriamines (DETA), trien (TETA), tetren (TEPA), five ethylidene six Amine (PEHA), six ethylidene seven amine (HEHA) and similar senior analog.Exemplary fat Race's branched polyamines include primary amine groups, secondary amine and tertiary amine groups and its have 600 to 30000 or Number-average molecular weight Mn of the polyamine of 1000 to 10000.Exemplary polymine includes line Property polymine or branched polyethylene imine.Commercial polyethylene imines is with BASF'sAnd Nippon ShokubaiSell.
In one embodiment, dispersant composition is water miscible.
In one embodiment, dispersant composition can be in the condition not using organic solvent Lower preparation, thus VOC will not be discharged in course of reaction.Therefore, exist Initial reaction stage should be noted that heat history phenomenon.The custom catalysts preparing polyurethane can be used in heat Reaction rate is accelerated, such as tin catalyst after release.For example, it is possible to from NITTO KASEI Obtain dibutyl tin laurate, dibutyltin diacetate and diethyltin diacetate.All right Application bismuth catalyst, such as commercial compound, the K-of KING INDUSTRIES company Series of products or NITTO KASEI companySeries of products.
Isocyanates list adduction intermediate is carried out by known method with the reaction of component (3). Generally, urea bond is formed during these, and reaction is often used without extra catalyst and organic Solvent.In some embodiments, based on poly-(C2-6-alkylene imine) framework molecular structure will Cause starlike geometry.Isocyanates list adduction intermediate as solubilising moieties will be at end Position is connected with anchor frame.
Dispersive process has three Main Stage, pigment wetting, pigment disintegrate and pigment stabilizer. Wet processes, this process by surface of pigments state from solid/gas surface conversion to solid-liquid interface.In order to Pigment solids being introduced in liquid medium, high shear force is required.Thus it is common to use point Powder is to reduce these dispersion forces and thus to be inputted and jitter time by the gross energy needed for system All minimize.Additionally, dispersant also provides for stabiliser to prevent from reuniting again.Known dispersion Agent is usually surfactant, it only directly applies to solid on a small quantity or adds liquid medium In.Disperse medium homogenizing after pigment agglomerate is the most deflocculated, can after scatter operation Situation about reuniting again with generation.In that way it is possible to generation counter productive, such as viscosity in liquid system Increase, loose colour and grow dim, or the loss of the gloss of ink and coating.
The compounds of this invention is used as organic or inorganic pigment or the wetting dispersing agent of filler.Its use Amount is for based on the 0.5wt% to 50wt% treating dispersing solid in ink and coating composition.So And, for needing more substantial dispersant during high surface of pigments under dispersion condition.
Embodiment
Following example further describe and represent exemplary embodiment party within the scope of the present invention Case.Embodiment is provided to be merely cited for and be not interpreted as limitation of the present invention, because of For in the case of without departing from the spirit and scope of the present invention, multiple change is possible.
Embodiment 1
Tri-mouthfuls of reaction flasks of 1000mL are equipped with thermometer, reflux condenser, heating mantle and machine 50.0 parts of toluene di-isocyanate(TDI)s (TDI) are put in reaction vessel and at nitrogen by tool agitator And stirred at ambient temperature.287.0 parts of PEG methyl ethers (DME-1000) are passed through dropping liquid Funnel was added dropwise in reactor with 1.5 hours.Reactant mixture is heated to 70 DEG C, and And according to the DIN 53185 reduction by titrimetry monitoring NCO%.When NCO% is down to When 3.6%, 9.9 parts of diethylenetriamines (DETA) were added dropwise over 1 hour.By mixture It is heated to 85 DEG C and is stirred for 3 hours at such a temperature.Remove thermal source.By 520.4 parts of water Join in the mixture of heat.Product be solid content be the clear light yellow solution of 40.3%.This It it is dispersant 1.
Embodiment 2
Similar to Example 1,50.0 parts of toluene di-isocyanate(TDI)s (TDI) are put into reaction vessel In and at nitrogen and stirred at ambient temperature.By 287.0 parts of PEG methyl ethers (DME-1000) it is added dropwise in reactor with the time of 1.5 hours by Dropping funnel.Will Reactant mixture is heated to 70 DEG C, and by the reduction of titrimetry monitoring NCO%.When When NCO% is down to 3.6%, by 10.5 parts of triens (TETA) with time of 1 hour It is added dropwise over.Heat the mixture to 85 DEG C and be stirred for 3 hours at such a temperature.Remove Thermal source.521.3 parts of water are joined in the mixture of heat.Product be solid content be 39.7% clear Light yellow solution.This is dispersant 2.
Embodiment 3
Similar to Example 1,50.0 parts of toluene di-isocyanate(TDI)s (TDI) are put into reaction vessel In and at nitrogen and stirred at ambient temperature.By 287.0 parts of PEG methyl ethers (DME-1000) it is added dropwise in reactor with the time of 1.5 hours by Dropping funnel.Will Reactant mixture is heated to 70 DEG C, and by the reduction of titrimetry monitoring NCO%.When When NCO% is down to 3.6%, 10.9 parts of tetrens (TEPA) were dropwise added with 1 hour Enter.Heat the mixture to 85 DEG C and be stirred for 3 hours at such a temperature.Remove thermal source. 521.9 parts of water are joined in the mixture of heat.Product be solid content be 40.4% clarification yellowish Color solution.This is dispersant 3.
Embodiment 4
By 60.0 parts of isophorone diisocyanate (IPDI) and 0.02 part of NEOSTANN U-600 (being derived from NITTO KASEI CO., LTD) puts in reaction vessel, and at nitrogen And stirred at ambient temperature.269.9 parts of PEG methyl ethers (DME-1000) are passed through dropping liquid Funnel was added dropwise in reactor with the time of 1.5 hours.Reactant mixture is heated to 70 DEG C, and by the reduction of titrimetry monitoring NCO%.When NCO% is down to 3.4%, 9.3 parts of diethylenetriamines (DETA) were added dropwise over 1 hour.Heat the mixture to 85 DEG C and be stirred for 3 hours at such a temperature.Remove thermal source.508.8 parts of water are joined In the mixture of heat.Product be solid content be the clear light yellow solution of 40.2%.This is dispersion Agent 4.
Embodiment 5
Similar to Example 4, by 60.0 parts of isophorone diisocyanate (IPDI) and 0.02 part NEOSTANN U-600 puts in reaction vessel, and at nitrogen and stirred at ambient temperature. By 269.9 parts of PEG methyl ethers (DME-1000) by Dropping funnel with 1.5 hours time Between be added dropwise in reactor.Reactant mixture is heated to 70 DEG C, and passes through titrimetry The reduction of monitoring NCO%.When NCO% is down to 3.4%, by 9.9 parts of triens (TETA) it is added dropwise over the time of 1 hour.Heat the mixture to 85 DEG C and in this temperature 3 hours it are stirred under degree.Remove thermal source.509.7 parts of water are joined in the mixture of heat. Product be solid content be the clear light yellow solution of 40.0%.This is dispersant 5.
Embodiment 6
Similar to Example 4, by 60.0 parts of isophorone diisocyanate (IPDI) and 0.02 part NEOSTANN U-600 puts in reaction vessel, and at nitrogen and stirred at ambient temperature. By 269.9 parts of PEG methyl ethers (DME-1000) by Dropping funnel with 1.5 hours time Between be added dropwise in reactor.Reactant mixture is heated to 70 DEG C, and passes through titrimetry The reduction of monitoring NCO%.When NCO% is down to 3.4%, by 10.2 part of four ethylidene five Amine (TEPA) was added dropwise over 1 hour.Heat the mixture to 85 DEG C and at such a temperature It is stirred for 3 hours.Remove thermal source.510.2 parts of water are joined in the mixture of heat.Product Be solid content be the clear light yellow solution of 39.6%.This is dispersant 6.
Embodiment 7
By 100 parts of isophorone diisocyanate (IPDI) and 0.02 part of NEOSTANN U-600 Put in reaction vessel, and at nitrogen and stirred at ambient temperature.By 247.4 parts of poly-(second two Alcohol) methyl ether (MPEG-550) was added dropwise in reactor with 1.5 hours by Dropping funnel. Reactant mixture is heated to 70 DEG C, and by the reduction of titrimetry monitoring NCO%.When When NCO% is down to 5.4%, 15.5 parts of diethylenetriamines (DETA) were dropwise added with 1 hour Enter.Heat the mixture to 85 DEG C and be stirred for 3 hours at such a temperature.Remove thermal source. 544.4 parts of water are joined in the mixture of heat.Product be solid content be 40.1% clarification yellowish Color solution.This is dispersant 7.
Embodiment 8
Similar to Example 7, by 100 parts of isophorone diisocyanate (IPDI) and 0.02 part NEOSTANN U-600 puts in reaction vessel, and at nitrogen and stirred at ambient temperature. By 247.4 parts of PEG methyl ethers (MPEG-550) by Dropping funnel with 1.5 hours time Between be added dropwise in reactor.Reactant mixture is heated to 70 DEG C, and passes through titrimetry The reduction of monitoring NCO%.When NCO% is down to 5.4%, by 16.5 parts of triethylenes four Amine (TETA) was added dropwise over the time of 1 hour.Heat the mixture to 85 DEG C and at this At a temperature of be stirred for 3 hours.Remove thermal source.545.9 parts of water are joined in the mixture of heat. Product be solid content be the clear light yellow solution of 40.5%.This is dispersant 8.
Embodiment 9
Similar to Example 7, by 100 parts of isophorone diisocyanate (IPDI) and 0.02 part NEOSTANN U-600 puts in reaction vessel, and at nitrogen and stirred at ambient temperature. By 247.4 parts of PEG methyl ethers (MPEG-550) by Dropping funnel with 1.5 hours time Between be added dropwise in reactor.Reactant mixture is heated to 70 DEG C, and according to DIN 53185 Reduction by titrimetry monitoring NCO%.When NCO% is down to 5.4%, by 17.0 parts Tetren (TEPA) was added dropwise over the time of 1 hour.Heat the mixture to 85 DEG C And it is stirred for 3 hours at such a temperature.Remove thermal source.546.6 parts of water are joined heat In mixture.Product be solid content be the clear light yellow solution of 40.2%.This is dispersant 9.
Embodiment 10
By 60 parts of Desmodur N 100 (Bayer, degree of functionality=3.8) and 0.02 part of NEOSTANN U-600 puts in reaction vessel, and at nitrogen and stirred at ambient temperature.By 231.66 parts PEG methyl ether (MPEG-1000) is dropwise added with the time of 1.5 hours by Dropping funnel Enter to reactor.Reactant mixture is heated to 70 DEG C, and passes through according to DIN 53185 The reduction of titrimetry monitoring NCO%.When NCO% is down to 1.19%, sub-by 2.84 part two Ethyl triamine (DETA) was added dropwise over the time of 1 hour.Heat the mixture to 85 DEG C also And it is stirred for 3 hours at such a temperature.Remove thermal source.441.78 parts of water are joined the mixed of heat In compound.Product be solid content be the clear light yellow solution of 40.0%.This is dispersant 10.
Embodiment 11
By 60 parts of polyisocyanate prepared by tetramethylolmethane and hexamethylene diisocyanate ( 4,670, No. 068 United States Patent (USP) embodiments 1, have the degree of functionality of 4.5) and 0.02 part NEOSTANN U-600 puts in reaction vessel, and at nitrogen and stirred at ambient temperature. By 215.4 parts of PEG methyl ethers (MPEG-1000) by Dropping funnel with 1.5 hours time Between be added dropwise in reactor.Reactant mixture is heated to 70 DEG C, and according to DIN 53185 by the reduction of titrimetry monitoring NCO%.When NCO% is down to 0.93%, will 2.1 parts of diethylenetriamines (DETA) were added dropwise over the time of 1 hour.Mixture is heated To 85 DEG C and be stirred for 3 hours at such a temperature.Remove thermal source.416.28 parts of water are added Enter in the mixture of heat.Product be solid content be the clear light yellow solution of 40.0%.This is Dispersant 11.
Comparative examples
FX 365 is the wetting agent purchased from Elementis Specialties
FX 600 is the dispersant purchased from Elementis Specialties
Performance Evaluation
In order to disclose the performance of the dispersant described in embodiment 1-9, by by dispersant with table 1 In concentration add to 150mL vial, prepare the condensed pigment without binding agent. Measure wetting effect and viscosity.
Table 1
DF 665 is the defoamer purchased from Elementis Specialties
DF 7620 is the defoamer purchased from Elementis Specialties
Zirconium (zicronium) pearl of mixture and 200 parts of a diameter of 2mm is merged.Also use Carbon Black MA 100 and Heliogen Blue D 7079.With the pigment being loaded with 25% Black pigment concentrate and the blue pigment concentrate of the pigment that is loaded with 30% prepare aqueous Dispersant.
Vial is placed in Scandex disperser and inclusions is rocked grinding by vibration Until particle diameter is less than 5 μm.Fineness is measured with fineness gauge.Use cone-plate several in range of shear rate What structure measures the viscosity of dispersion liquid on Brookfield viscometer.Fineness and viscosity data exist Shown in table 2 and table 3.
Table 2
Table 3
In the case of without departing substantially from the purport of the disclosure or essential attribute, the disclosure can be with other Concrete form is implemented.Therefore, table should be carried out with reference to claims rather than aforementioned specification Show the scope of the present disclosure.Although aforesaid description relates to the preferred embodiment of the disclosure, but Should be noted that other change and amendment will be aobvious and easy to those skilled in the art See, and can make in the case of without departing substantially from the spirit or scope of the disclosure.

Claims (15)

1. dispersant, it includes derived from following fragment:
(1) one or more have the polyisocyanate of at least 2 isocyanate groups,
(2) there is the monofunctional compound of isocyanate-reactive functional moiety;And
(3) amine degree of functionality is two or more polyamine.
Dispersant the most according to claim 1, wherein 50%-90% equivalent is described poly- The isocyanate groups of isocyanates is combined with described monofunctional compound, and 10%-50% works as The described isocyanate groups of amount is combined with described polyamine.
3. according to the dispersant according to any one of claim 1 and 2, wherein said simple function Compound independently selected from aliphatic compound, alicyclic compound and aromatic compound, and A combination thereof, described monofunctional compound has the molecular weight of 350 to 5000, and described single official Can be contained at least one independently selected from following group by compound :-O-or-COO-and group thereof Close.
Dispersant the most according to claim 3, wherein said isocyanate-reactive official's energy Part is independently selected from hydroxyl, amine or imines and combinations thereof.
Dispersant the most according to claim 4, wherein said monofunctional compound is independently Poly-(C selected from the ethylene oxide group containing 60%-99%2-4-alkylene oxide), polyester oligomer, And combinations thereof.
Dispersant the most according to claim 5, wherein said polyester oligomer contains derivative From dicarboxylic acids and the fragment of ethylene glycol.
7. according to the dispersant according to any one of claim 3 to 6, wherein said poly-isocyanide Acid esters is diisocyanate, and it is independently selected from toluene di-isocyanate(TDI), isophorone two isocyanide Acid esters (IPDI), hexamethylene diisocyanate, diphenyl-methane-4,4'-diisocyanate, bicyclo- Hexyl methane-4,4'-diisocyanate, 1,4-double (2-isocyano-2-base) benzene, trimethyl six methylene Group diisocyanate, or the mixture of these diisocyanate.
8. according to the dispersant according to any one of claim 3 to 6, wherein said poly-isocyanide Acid esters is independently selected from isocyanate adduct, isocyanates biuret, isocyanates isocyanide urea Acid esters or the mixture of this kind of polyisocyanate.
9. according to the dispersant according to any one of claim 7 or 8, wherein said poly-isocyanide Acid esters is independently selected from toluene di-isocyanate(TDI) and trimethylolpropane adduct, hexa-methylene two Isocyanates biuret trimer, hexamethylene diisocyanate isocyanurate trimer, different Isophorone diisocyanate isocyanurate trimer, hexamethylene diisocyanate isocyanuric acid Ester trimer, and isophorone diisocyanate isocyanurate trimer.
10. according to the dispersant according to any one of claim 3 to 9, wherein said polyamine Independently selected from polymine (PEI), polyvinylamine, polyallyl amine oligomer, ethylene Asia Amine oligomer, and combinations thereof.
11. dispersants according to claim 10, wherein said polyamine independently selected from Diethylenetriamines (DETA), trien (TETA), tetren (TEPA), Penten (PEHA), six ethylidene seven amine (HEHA) and combinations thereof.
12. according to the dispersant according to any one of claim 3 to 11, wherein said point Powder is water miscible.
13. according to the preparation method of the dispersant according to any one of claim 1 to 12, Wherein said polyisocyanate and described monofunctional compound are reacted to form isocyanates list adduction Intermediate.
The preparation method of 14. dispersants according to claim 13, wherein said isocyanide Acid esters list adduction intermediate and described polyamine are reacted to form described dispersant.
15. dispersions, it comprises (i) independently selected from organic pigment solid, inorganic pigment solid And combinations thereof pigment, (ii) polar liquid medium, and (iii) is according in claim 3 to 12 Dispersant described in any one.
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